Silver halide photographic industrial X-ray films

Abstract

To eliminate the "pi-line" artefact after processing a silver halide industrial photographic X-ray material is disclosed comprising on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, wherein said photographic material comprises at least one vinyl sulphone compound as a hardening agent and at least one polyoxyalkylene compound as a surfactant in at least one of its hydrophilic layers. A method of image forming in said silver halide photographic material is described wherein after exposure to direct X-rays said material is subjected in an automatic processing machine to the steps of developing in a developer comprising as a surfactant at least one anionic alkylphenoxy and/or alkoxy polyalkyleneoxy phosphate ester, sulphate ester, alkyl carboxylic, sulphonic or phosphonic acid and/or a salt thereof, fixing in a fixer which may comprise at least one alpha-ketocarboxylic acid, rinsing and drying.

We claim: 
     
       1. A silver halide industrial photographic X-ray material comprising on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 10 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating, characterized in that said photographic material comprises at least one vinyl sulphone compound as a hardening agent and at least one polyoxyalkylene compound, said at least one polyoxyalkylene compound being the condensation product of castor oil and polyethylene oxide with 40 recurrent units, as a surfactant in at least one of its hydrophilic layers. 
     
     
       2. A silver halide industrial photographic X-ray material according to claim 1, wherein said hardening agent(s) is (are) present in an amount between 50 and 400 mg/m 2  per side of the film support. 
     
     
       3. A silver halide industrial photographic X-ray material according to claim 1, wherein said hardening agent(s) is (are) present in an amount between 80 and 250 mg/m 2  per side of the film support. 
     
     
       4. A silver halide industrial photographic X-ray material according to claim 1, wherein said polyoxyalkylene compound(s) is(are) present in an amount between 10 to 200 mg/m 2  per side of the film support. 
     
     
       5. A silver halide industrial photographic X-ray material according to claim 1, wherein said polyoxyalkylene compound(s) is(are) present in an amount between 20 to 100 mg/m 2  per side of the film support. 
     
     
       6. A silver halide industrial photographic X-ray material according to claim 1, wherein said at least one polyoxyalkylene compound is the condensation product of castor oil and polyethylene oxide with 40 recurrent units. 
     
     
       7. A silver halide industrial photographic X-ray material according to claim 1, wherein said polyoxyalkylene compound(s) and/or said hardening agent(s) are present in said protective antistress coating(s). 
     
     
       8. A silver halide industrial photographic X-ray material according to claim 1, wherein said vinyl sulphone compound is di-(vinyl-sulphonyl)-methane. 
     
     
       9. A silver halide industrial photographic X-ray material according to claim 1, wherein said vinyl sulphone compound is ethylene di-(vinyl-sulphone).